TM 5-3610-285-14
(14)
Check voltage and frequency as follows:
(a)
Push phase test switch. Observe correct phase lamp lights.
(b)
Turn phase switch to A.
CAUTION
Voltage must be between 110 and 120, and frequency must be at 60 1 Hz on each leg before turning on
main circuit breaker or damage to equipment may result.
(c)
Read voltage on meter.
(d)
Read frequency on scale.
(e)
Repeat for positions B and C on phase switch.
(15)
Set main circuit breaker ON.
NOTE
This step must be accomplished if section is placed in operation in darkness, fog, mist, or under blackout
conditions.
(16)
Close blackout curtains, if required.
1-32
